Answer: A.
Explanation:
There core, or inner layer, is the most dense due to its magnetic pole, not to mention, the core is comprised of multiple molten materials, heated so hot, tht it practically exist between two states of matter simultaneously.
Converting the temperature to Kelvin,
because Boyle's law is (Pressure 1) (Volume 1) = (Pressure 2) (Volume 2) and there's no need for temperature.